0.8×8.9×1.25-3.45-4.65 7又1/4×97+7.25÷1/4-7又1/4 还有一道
3个回答
x/3=1又2/5:2又1/3
0.8×8.9×1.25-3.45-4.65 =0.8×1.25×8.9-(3.45+4.65) =8.9-8.1 =0.7
相关问题
(1)125 - 25×6÷30 (2)( + )×45 (3)1.8+4.3+0.7+4.2 (4)8.3×9.9+8
8470—104×65 1.3—3.79+9.7—6.21 3.64÷4+4.36×0.25 3/8×8.4+2又3/5
看谁算得又对又快.1.5×2= 3.6÷3= 8.7×1= 4.2×0.3= 4.8×0.4= 2.8÷0.7= 1.7
口算. 3 4 × 5 6 = 1 7 ÷5= 1÷ 4 7 = 15× 4 15 = 1.25× 1 8 = 2 9
下面各题怎样简便就怎样计算9.9×25 3.25×4.7-7.8 1.25×32×0.25 8.12×4+1.88×4.
简便运算4.7×3.4+0.47×53+4.7×1.3 0.25×0.9÷0,·25÷0,9 0,25×0,9÷0,25
直接写得数12.7-(8.65+2.7) 92.5×0.25×4 6.7×0.9+6.7×0.1 8.25×9.9+0.
0.7×1又4/9+2又3/4×﹙﹣15﹚+0.7×5/9-1/4×15
90÷﹙3.6-1.8﹚ 3.4×7.8÷3.9 5.23×4+4.77÷0.25
细心计算6.3× 3 4 +3.7÷ 4 3 ; (4.5×1.1×4.8)÷(3.3×0.8×0.5)7÷(7-7×0